Inventor · disambiguated record
Alfred J. Alexander
Also filed as: ALEXANDER ALFRED J · ALEXANDER ALFRED JOHN · ALEXANDER JR ALFRED
6 granted patents·229 citations·filing 1972–2005
84Inventor score
Files withELLIOTT BROTHERS LONDON LTD1PENNEY & GILES BLACKWOOD LIMIT1PENNY & GILES BLACKWOOD LTD1PENNY & GILES CONTROLS LTD1PG DRIVES TECHNOLOGIES LTD1
Top patents by PatentIndex Score
6 records- 0188US5831596AJoystick controller using magnetic position sensors and a resilient control arm with sensor used to measure its flexPENNEY & GILES BLACKWOOD LIMIT·Filed 1993·Granted Nov 3, 1998·159 cites·11 claims
- 0278US6992602B2Joystick controllerPENNY & GILES CONTROLS LTD·Filed 2001·Granted Jan 31, 2006·28 cites·31 claims
- 0375US7411521B2Control systemPG DRIVES TECHNOLOGIES LTD·Filed 2005·Granted Aug 12, 2008·12 cites·46 claims
- 0463US5621179ARotary transducerPENNY & GILES BLACKWOOD LTD·Filed 1993·Granted Apr 15, 1997·25 cites·10 claims
- 0529US4188627ADisplay apparatusELLIOTT BROTHERS LONDON LTD·Filed 1972·Granted Feb 12, 1980·4 cites·9 claims
- 0622US4449295ADevice to install drapery hooksROBERTSON FACTORIES INC·Filed 1982·Granted May 22, 1984·1 cites·8 claims
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